I suggest Valgrind, I was using it for my own project and it is a very
good tool. If the problem is not reproductable you can even try to run the
wesnothd on valgrind - it will slow down the server little bit, but you'll
get all informations about leakage.
greetings,
Marcin
On Mon, 28 Jul 2008, Piotr Cychowski wrote:
For those that do not frequent IRC, our server just underwent really
nasty meltdown that ended in corrupt filesystem. The guys at humhost are
working on it now and think that all our data is recoverable and it was
not caused by a faulty hardware.
The way whole thing developed deffinitely points towards complete memory
starvation, something used up every bit of unallocated memory not even
leaving enough to start a SSH session. Normaly first suspect would be
MySQL server, but all SQL requests at our box go through Apache which
causes it to blow up on lack of resources for the database. In this case
Apache was working fine, as was PHP plugin (albeit due to memory
constraints it was able to run only one, very small script).
That leaves only one valid suspect - wesnothd
My guess is (I might be wrong, once we get back up there are sprobably
some logs to be checked, they might give other villain) that it is
leaking memory somewhere. It'd be *very* good to find that leak (if it
exist) before we put it up again, because otherwise we'll crash again,
and we'll crash as badly. Checking trunk and 1.5.2 wesnothd code is
probably the most important task that needs to be done for yesterday.
Again, I might be wrong, but leaking wesnothd is only thing I can think
of to cause a meltdown with these particular symptoms.
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Marcin "slajerek" Skoczylas http://www.SLAJEREK.w.pl
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